§ 217.314 Mitigation requirements. When conducting the specified activities identified in §§ 217.310(c) and 217.312, Sunrise Wind must implement the following mitigation measures contained in this section and any LOA issued under § 217.316 or § 217.317. These mitigation measures include, but are not limited to: ( a ) *General conditions.* Sunrise Wind must comply with the following general measures: ( 1 ) A copy of any issued LOA must be in the possession of Sunrise Wind and its designees, all vessel operators, visual protected species observers (PSOs), passive acoustic monitoring (PAM) operators, pile driver operators, and any other relevant designees operating under the authority of the issued LOA;
( 2 ) Sunrise Wind must conduct training for construction supervisors, construction crews, and the PSO and PAM team prior to the start of all construction activities and when new personnel join the work in order to explain responsibilities, communication procedures, marine mammal monitoring and reporting protocols, and operational procedures. A description of the training program must be provided to NMFS at least 60 days prior to the initial training before in-water activities begin. Confirmation of all required training must be documented on a training course log sheet and reported to NMFS Office of Protected Resources prior to initiating project activities;
( 3 ) PSOs and PAM operators have the authority to call for a delay or shutdown to an activity and Sunrise Wind must instruct all personnel regarding the authority of the PSOs and PAM operators. If a shutdown of an activity is called for by a PSO or PAM operator, Sunrise Wind must take the required mitigative action unless shutdown would result in imminent risk of injury or loss of life to an individual, pile refusal, or pile instability. Any disagreements between the PSO, PAM operator, and the activity operator regarding delays or shutdowns must only be discussed after the mitigative action has occurred;
( 4 ) Sunrise Wind and PSOs are required to use available sources of information on North Atlantic right whale presence to aid in monitoring efforts. These include daily monitoring of the Right Whale Sighting Advisory System, consulting of the WhaleAlert app, and monitoring of the Coast Guard's VHF Channel 16 to receive notifications of marine mammal sightings and information associated with any Dynamic Management Areas (DMA) and Slow Zones;
( 5 ) Any marine mammal observation by project personnel must be immediately communicated to any on-duty PSOs and PAM operator(s). Any large whale observation or acoustic detection must be conveyed to all vessel captains;
( 6 ) If an individual from a species for which authorization has not been granted, or a species for which authorization has been granted but the authorized take number has been met, is observed entering or within the relevant clearance zone prior to beginning a specified activity, the activity must be delayed. If an activity is ongoing and an individual from a species for which authorization has not been granted, or a species for which authorization has been granted but the authorized take number has been met, is observed entering or within the relevant shutdown zone, the activity must be shut down (*i.e.,* cease) immediately, unless shutdown would result in imminent risk of injury or loss of life to an individual, pile refusal, or pile instability. The activity must not commence or resume until the animal(s) has been confirmed to have left the clearance or shutdown zones and is on a path away from the applicable zone or after 30 minutes for all baleen whale species and sperm whales, and 15 minutes for all other species;
( 7 ) In the event that a large whale is sighted or acoustically detected that cannot be confirmed as a non-North Atlantic right whale, it must be treated as if it were a North Atlantic right whale for purposes of mitigation;
( 8 ) For in-water construction heavy machinery activities listed in section 1(a)(1), if a marine mammal is detected within, or about to enter, 10 meters (m) (32.8 feet (ft)) of equipment, Sunrise Wind must cease operations until the marine mammal has moved more than 10 m on a path away from the activity to avoid direct interaction with equipment;
( 9 ) All vessels must be equipped with a properly installed, operational Automatic Identification System (AIS) device and Sunrise Wind must report all Maritime Mobile Service Identify (MMSI) numbers to NMFS Office of Protected Resources;
( 10 ) By accepting a LOA, Sunrise Wind consents to on-site observation and inspections by Federal agency personnel (including NOAA personnel) during activities described in this subpart, for the purposes of evaluating the implementation and effectiveness of measures contained within this subpart and the LOA; and
( 11 ) It is prohibited to assault, harm, harass (including sexually harass), oppose, impede, intimidate, impair, or in any way influence or interfere with a PSO, PAM operator, or vessel crew member acting as an observer, or attempt the same. This prohibition includes, but is not limited to, any action that interferes with an observer's responsibilities, or that creates an intimidating, hostile, or offensive environment. Personnel may report any violations to the NMFS Office of Law Enforcement.
( b ) *Vessel strike avoidance measures.* Sunrise Wind must comply with the following vessel strike avoidance measures while in the specific geographic region, unless a deviation is necessary to maintain safe maneuvering speed and justified because the vessel is in an area where oceanographic, hydrographic, and/or meteorological conditions severely restrict the maneuverability of the vessel; an emergency situation presents a threat to the health, safety, life of a person; or when a vessel is actively engaged in emergency rescue or response duties, including vessel-in-distress or environmental crisis response. An emergency is defined as a serious event that occurs without warning and requires immediate action to avert, control, or remedy harm. ( 1 ) Prior to the start of the Project's activities involving vessels, all vessel personnel must receive a protected species training that covers, at a minimum, identification of marine mammals that have the potential to occur in the specified geographical region; detection and observation methods in both good weather conditions (*i.e.,* clear visibility, low winds, low sea states) and bad weather conditions (*i.e.,* fog, high winds, high sea states, with glare); sighting communication protocols; all vessel strike avoidance mitigation requirements; and information and resources available to the project personnel regarding the applicability of Federal laws and regulations for protected species. This training must be repeated for any new vessel personnel who join the project;
( 2 ) Confirmation of the vessel personnel's training and understanding of the LOA requirements must be documented on a training course log sheet and reported to NMFS within 30 days of completion of training;
( 3 ) All vessel operators and dedicated visual observers must maintain a vigilant watch for all marine mammals and slow down, stop their vessel, or alter course to avoid striking any marine mammal;
( 4 ) All transiting vessels, operating at any speed must have a dedicated visual observer on duty at all times to monitor for marine mammals within a 180° direction of the forward path of the vessel (90° port to 90° starboard) located at an appropriate vantage point for ensuring vessels are maintaining appropriate separation distances. Dedicated visual observers may be PSOs or crew members, but crew members responsible for these duties must be provided sufficient training by Sunrise Wind to distinguish marine mammals from other phenomena and must be able to identify a marine mammal as a North Atlantic right whale, other large whale (defined in this context as sperm whales or baleen whales other than North Atlantic right whales), or other marine mammals. Dedicated visual observers must be equipped with alternative monitoring technology (*e.g.,* night vision devices, infrared cameras) for periods of low visibility (*e.g.,* darkness, rain, fog, *etc.*). The dedicated visual observer must not have any other duties while observing and must receive prior training on protected species detection and identification, vessel strike avoidance procedures, how and when to communicate with the vessel captain, and reporting requirements in this subpart;
( 5 ) All vessel operators and dedicated visual observers must continuously monitor US Coast Guard VHF Channel 16 at the onset of transiting through the duration of transit. At the onset of transiting and at least once every 4 hours, vessel operators and/or trained crew member(s) must monitor the project's Situational Awareness System, (if applicable), WhaleAlert, and relevant NOAA information systems such as the Right Whale Sighting Advisory System (RWSAS) for the presence of North Atlantic right whales;
( 6 ) All vessel operators must abide by vessel speed regulations (50 CFR 224.105). Nothing in this subpart exempts vessels from any other applicable marine mammal speed or approach regulations;
( 7 ) In the event that a DMA or Slow Zone is established that overlaps with an area where a project-associated vessel is operating, that vessel, regardless of size, must transit that area at 10 kn or less;
( 8 ) Between November 1st and April 30th, all vessels, regardless of size, must operate port to port (specifically from ports in New Jersey, New York, Maryland, Delaware, and Virginia) at 10 kn or less, except for vessels while transiting in Narragansett Bay or Long Island Sound;
( 9 ) All vessels, regardless of size, must immediately reduce speed to 10 kn or less when any large whale, (other than a North Atlantic right whale), mother/calf pairs, or large assemblages of non-delphinid cetaceans are observed within 500 m (0.31 mi) of a transiting vessel;
( 10 ) All vessel operators must immediately reduce speed to 10 kn (11.5 mph) or less for at least 24 hours when a North Atlantic right whale is sighted, at any distance, by any project-related personnel or acoustically detected by any project-related PAM system. Each subsequent observation or acoustic detection shall trigger an additional 24-hour period. If a vessel is traveling at speed greater than 10 kn (11.5 mph) (*i.e.,* no speed restrictions are enacted) in the transit corridor (defined as from a port to the Lease Area or return), in addition to the required dedicated visual observer, Sunrise Wind must monitor the transit corridor in real-time with PAM prior to and during transits. If a North Atlantic right whale is detected via visual observation or PAM within or approaching the transit corridor, all vessels in the transit corridor must travel at 10 kn (11.5 mph) or less for 24 hours following the detection. Each subsequent detection shall trigger a 24-hour reset. A slowdown in the transit corridor expires when there has been no further North Atlantic right whale visual or acoustic detection in the transit corridor in the past 24 hours; All vessels must maintain a minimum separation distance of 500 m from North Atlantic right whales. If underway, all vessels must steer a course away from any sighted North Atlantic right whale at 10 kn (11.5 mph) or less such that the 500-m minimum separation distance requirement is not violated. If a North Atlantic right whale is sighted within 500 m of an underway vessel, that vessel must turn away from the whale(s), reduce speed and shift the engine to neutral. Engines must not be engaged until the whale has moved outside of the vessel's path and beyond 500 m;
( 11 ) All vessels must maintain a minimum separation distance of 100 m (328 ft) from sperm whales and non-North Atlantic right whale baleen whales. If one of these species is sighted within 100 m of an underway vessel, the vessel must turn away from the whale(s), reduce speed, and shift the engine(s) to neutral. Engines must not be engaged until the whale has moved outside of the vessel's path and beyond 100 m;
( 12 ) All vessels must maintain a minimum separation distance of 50 m (164 ft) from all delphinid cetaceans and pinnipeds with an exception made for those that approach the vessel (*e.g.,* bow-riding dolphins). If a delphinid cetacean or pinniped is sighted within 50 m of a transiting vessel, that vessel must turn away from the animal(s), reduce speed, and shift the engine to neutral, with an exception made for those that approach the vessel (*e.g.,* bow-riding dolphins). Engines must not be engaged until the animal(s) has moved outside of the vessel's path and beyond 50 m;
( 13 ) All vessels underway must not divert or alter course to approach any marine mammal;
( 14 ) Prior to transit, vessel operators must check for information regarding the establishment of Seasonal and Dynamic Management Areas, Slow Zones, and any information regarding North Atlantic right whale sighting locations; and
( 15 ) Sunrise Wind must submit a Marine Mammal Vessel Strike Avoidance Plan 180 days prior to the planned start of vessel activity that provides details on all relevant mitigation and monitoring measures for marine mammals, vessel speeds and transit protocols from all planned ports, vessel-based observer protocols for transiting vessels, communication and reporting plans, and proposed alternative monitoring equipment in varying weather conditions, darkness, sea states, and in consideration of the use of artificial lighting. If Sunrise Wind plans to implement PAM in any transit corridor to allow vessel transit above 10 kn the plan must describe how PAM, in combination with visual observations, will be conducted. If a plan is not submitted and approved by NMFS prior to vessel operations, all project vessels must travel at speeds of 10 kn (11.5 mph) or less. Sunrise Wind must comply with any approved Marine Mammal Vessel Strike Avoidance Plan.
( c ) *Wind turbine generator (WTG) and offshore converter substation (OCS-DC) foundation installation.* The requirements in paragraphs (c)(1) through (27) of this section apply to impact pile driving activities associated with the installation of WTG and OCS-DC foundations: ( 1 ) Foundation impact pile driving activities must not occur January 1 through April 30, annually. Foundation impact pile driving must not be planned in December; however, it may only occur if necessary to complete the Project within a given year with prior approval by NMFS. Sunrise Wind must notify NMFS in writing by September 1 of that year that pile driving cannot be avoided, and circumstances are expected to necessitate pile driving in December;
( 2 ) No more than four monopiles may be installed per day;
( 3 ) Monopiles must be no larger than a tapered 7/12 m monopile design. The minimum amount of hammer energy necessary to effectively and safely install and maintain the integrity of the piles must be used. Hammer energies must not exceed 4,000 kilojoules (kJ);
( 4 ) Sunrise Wind must not initiate pile driving earlier than 1 hour after civil sunrise or later than 1.5 hours prior to civil sunset, unless Sunrise Wind submits, and NMFS approves, a Nighttime Pile Driving Plan, that demonstrates the efficacy of their night vision devices to effectively monitor the mitigation zones. Sunrise Wind must submit this Plan or Plans (if separate Daytime Reduced Visibility and Nighttime Monitoring Plans are prepared) to NMFS Office of Protected Resources at least 180 calendar days before impact pile driving is planned to begin. This Plan(s) must include, but is not limited to, a complete description of how Sunrise Wind will monitor pile driving activities during reduced visibility conditions (*e.g.* rain, fog) and at night, including proof of the efficacy of monitoring devices (*e.g.,* mounted thermal/infrared camera systems, hand-held or wearable night vision devices NVDs, spotlights) in detecting marine mammals over the full extent of the required clearance and shutdown zones, including demonstration that the full extent of the minimum visibility zones can be effectively and reliably monitored. The Plan must identify the efficacy of the technology at detecting marine mammals in the clearance and shutdown zones under all the various conditions anticipated during construction, including varying weather conditions, sea states, and in consideration of the use of artificial lighting. If the plan does not include a full description of the proposed technology, monitoring methodology, and data demonstrating to NMFS Office of Protected Resources's satisfaction that marine mammals can reliably and effectively be detected within the clearance and shutdown zones for monopiles before and during impact pile driving, nighttime pile driving (unless a pile was initiated 1.5 hours prior to civil sunset) may not occur. Additionally, this Plan must contain a thorough description of how Sunrise Wind will monitor pile driving activities during daytime when unexpected changes to lighting or weather occur during pile driving that prevent visual monitoring of the full extent of the clearance and shutdown zones;
( 5 ) Sunrise Wind must utilize a soft-start protocol at the beginning of foundation installation for each impact pile driving event and at any time following a cessation of impact pile driving of 30 minutes or longer;
( 6 ) Sunrise Wind must deploy, at minimum, a double bubble curtain and AdBm during all monopile foundation pile driving and, at minimum, a double bubble curtain during all jacket foundation pile driving; ( i ) The double bubble curtain must distribute air bubbles using an air flow rate of at least 0.5 m3/(min*m). The double bubble curtain must surround 100 percent of the piling perimeter throughout the full depth of the water column. In the unforeseen event of a single compressor malfunction, the offshore personnel operating the bubble curtain(s) must make appropriate adjustments to the air supply and operating pressure such that the maximum possible sound attenuation performance of the bubble curtain(s) is achieved.
( ii ) The lowest bubble ring must be in contact with the seafloor for the full circumference of the ring, and the weights attached to the bottom ring must ensure 100-percent seafloor contact.
( iii ) No parts of the ring or other objects may prevent full seafloor contact with a bubble curtain ring.
( iv ) Sunrise Wind must inspect and carry out appropriate maintenance on the noise attenuation system prior to every pile driving event and prepare and submit a Noise Attenuation System (NAS) inspection/performance report. For piles for which complete SFV is carried out, this report must be submitted as soon as it is available, but no later than when the interim SFV report is submitted for the respective pile. Performance reports for all subsequent piles must be submitted with the weekly pile driving reports. All reports must be submitted by email to *pr.itp.monitoringreports@noaa.gov .* For any noise mitigation device in addition to the bubble curtain, Sunrise Wind must inspect and carry out appropriate maintenance on the system and ensure the system is functioning properly prior to every pile driving event.
( 7 ) Sunrise Wind must utilize PSO(s). Each pile driving platform, including a minimum of a secondary, PSO-dedicated vessel, must have at least three on-duty PSOs;
( 8 ) Concurrent with visual monitoring, Sunrise Wind must utilize at least one PAM operator who must be actively monitoring for marine mammals one hour before, during and 30 minutes after impact pile driving with PAM. PAM operators must immediately communicate all detections of marine mammals to the Lead PSO, including any determination regarding species identification, distance, and bearing and the degree of confidence in the determination;
( 9 ) Sunrise Wind must utilize NMFS-approved PAM systems. The PAM system components (*i.e.,* acoustic buoys) must not be placed closer than 1 km (0.6 mi) to the pile being driven so that the activities do not mask the PAM system. Sunrise Wind must demonstrate and prove the detection range of the system they plan to deploy while considering potential masking from concurrent pile-driving and vessel noise. The PAM system must be able to detect a vocalization of North Atlantic right whales up to 10 km (6.2 mi);
( 10 ) Sunrise Wind must submit a Passive Acoustic Monitoring Plan (PAM Plan) to NMFS Office of Protected Resources for review and approval at least 180 days prior to the planned start of foundation installation activities and abide by the Plan if approved. The PAM Plan must include, but is not limited to, a description of all proposed PAM equipment; the calibration data; bandwidth capability; and sensitivity of hydrophones address how the proposed passive acoustic monitoring must follow standardized measurement, processing methods, reporting metrics, and metadata standards for offshore wind. The Plan must describe all proposed PAM equipment, procedures, and protocols including proof that vocalizing North Atlantic right whales will be detected within the clearance and shutdown zones, including, deployment locations, procedures, detection review methodology, and protocols; hydrophone detection ranges with and without foundation installation activities and data supporting those ranges; communication time between call and detection, and data transmission rates between PAM Operator and PSOs on the pile driving vessel; where PAM Operators will be stationed relative to hydrophones and PSOs on pile driving vessel calling for delay/shutdowns; and a full description of all proposed software, call detectors, and filters. The Plan must also include a description of Sunrise Wind's evaluation of the planned acoustic detection software using the PAM Atlantic baleen whale annotated data set available at National Centers for Environmental Information (NCEI) and provide evaluation/performance metrics (*e.g.,* false negatives/positives);
( 11 ) Sunrise Wind must establish clearance and shutdown zones, which must be measured using the radial distance around the pile being driven. PSOs must visually monitor clearance zones for marine mammals for a minimum of 60 minutes prior to commencing pile driving. At least one PAM operator must review data from at least 24 hours prior to pile driving and actively monitor hydrophones for 60 minutes prior to pile driving, at all times during pile driving, and for 30 minutes after pile driving. All clearance zones must be confirmed to be free of marine mammals for 30 minutes immediately prior to the beginning of soft-start procedures. If a marine mammal is detected within or about to enter the applicable clearance zones, during this 30-minute time period, impact pile driving, including soft-start, must be delayed until the animal has been visually observed exiting the clearance zone or until a specific time period has elapsed with no further sightings. The specific time periods are 30 minutes for all baleen whale species and sperm whales and 15 minutes for all other species;
( 12 ) For North Atlantic right whales, any visual observation by a PSO at any distance or acoustic detection within the 10 km PAM Monitoring Zone must trigger a delay to the commencement of pile driving;
( 13 ) PSOs must be able to visually clear (*i.e.,* confirm no marine mammals are present), at minimum, the minimum visibility zone. The entire minimum visibility zone must be visible (*i.e.,* not obscured by dark, rain, fog, *etc.*) for a full 30 minutes immediately prior to commencing impact pile driving;
( 14 ) If a marine mammal is detected (visually or acoustically) entering or within the respective shutdown after pile driving has begun, the PSO or PAM operator must call for a shutdown of pile driving and Sunrise Wind must stop pile driving immediately, unless shutdown is not practicable due to imminent risk of injury or loss of life to an individual or risk of damage to a vessel that creates risk of injury or loss of life for individuals, or the lead engineer determines there is risk of pile refusal or pile instability. If pile driving is not shut down due to one of these situations, Sunrise Wind must reduce hammer energy to the lowest level practicable;
( 15 ) If pile driving has been shut down due to the presence of a marine mammal other than a North Atlantic right whale, pile driving must not restart until either the marine mammal(s) has voluntarily left the specific clearance zones and has been visually or acoustically confirmed beyond that clearance zone, or, when specific time periods have elapsed with no further sightings or acoustic detections have occurred. The specific time periods are 30 minutes for all baleen whale species and sperm whales and 15 minutes for all other species. In cases where these criteria are not met, pile driving may restart only if necessary to maintain pile stability at which time Sunrise Wind must use the lowest hammer energy practicable to maintain stability.
( 16 ) Sunrise Wind must submit a Foundation Installation Pile Driving Marine Mammal Monitoring Plan to NMFS Office of Protected Resources for review and approval at least 180 days prior to planned start of foundation pile driving and abide by the Plan if approved. Sunrise Wind must obtain both NMFS Office of Protected Resources and NMFS Greater Atlantic Regional Fisheries Office Protected Resources Division's concurrence with this Plan prior to the start of any pile driving. The Plan must detail all plans and procedures for sound attenuation, including procedures for adjusting the noise attenuation system(s) and available contingency noise attenuation measures/systems if distances to modeled isopleths of concern are exceeded during SFV. The Plan must include a description of all monitoring equipment and PAM operator and PSO protocols (including number and location of PSOs and PAM operators) for all foundation pile driving and an informal guide to aid personnel in identifying species if they are observed in the vicinity of the project area;
( 17 ) Sunrise Wind must perform complete sound field verification (SFV) measurements during installation of, at minimum, the first three monopile WTG foundations and all OCS-DC foundation pin piles;
( 18 ) Complete SFV measurements must continue until at least three consecutive piles demonstrate noise levels are at or below those modeled, assuming 10 decibels (dB) of attenuation. Subsequent complete SFV measurements are also required should larger piles be installed or if additional monopiles are driven that may produce louder sound fields than those previously measured (*e.g.,* from higher hammer energy, greater number of strikes, harder substrate composition, deeper water *etc.*); ( i ) Complete SFV measurements must be made at a minimum of four distances from the pile(s) being driven, along a single transect, in the direction of lowest transmission loss (*i.e.,* projected lowest transmission loss coefficient), including, but not limited to, 750 m (2,460 ft) and three additional ranges, including, at least, the modeled Level B harassment isopleth assuming 10-dB attenuation. At least one additional measurement at an azimuth 90 degrees from the array at 750 m must be made;
( ii ) At each measurement distance, there must be a near bottom and mid-water column hydrophone (measurement system); and
( iii ) Sunrise Wind must submit complete SFV interim reports within 48 hours after each foundation is measured and before an additional foundation is installed. If any of the interim SFV reports submitted indicate that distances to the Level A harassment and Level B harassment thresholds exceed those modeled assuming 10-dB attenuation, then Sunrise Wind must implement additional measures on all subsequent foundations to ensure the measured Level A and Level B harassment isopleths do not exceed those modeled for foundation installation, assuming 10-dB attenuation. Sunrise Wind must also increase clearance and shutdown zone sizes to those identified by NMFS until SFV measurements on at least three additional foundations demonstrate acoustic distances to harassment thresholds meet or are less than those modeled assuming 10-dB of attenuation. For every 1,500 m that a marine mammal clearance or shutdown zone is expanded, additional PSOs must be deployed from additional platforms/vessels to ensure adequate and complete monitoring of the expanded shutdown and/or clearance zone with each observer responsible for maintaining watch in no more than 120° and of an area with a radius no greater than 1,500 m. Sunrise Wind must optimize the sound attenuation systems (*e.g.,* ensure hose maintenance, pressure testing, *etc.*) to, at least, meet noise levels modeled, assuming 10-dB attenuation, within three piles or else foundation installation activities must cease until NMFS and Sunrise Wind can evaluate the situation and ensure future piles will not exceed noise levels modeled assuming 10-dB attenuation;
( 19 ) Sunrise Wind also must conduct abbreviated SFV, using at least one acoustic recorder (consisting of a bottom and mid-water column hydrophone) for every foundation for which complete SFV monitoring is not conducted. Abbreviated SFV reports must be included in weekly reports. Any indications that distances to the identified Level A harassment and Level B harassment thresholds for marine mammals may be exceeded based on this abbreviated monitoring must be addressed by Sunrise Wind in the weekly report, including an explanation of factors that contributed to the exceedance and corrective actions that were taken to avoid exceedance on subsequent piles. Sunrise Wind must meet with NMFS within two business days of Sunrise Wind's submission of a report that includes an exceedance to discuss if any additional action is necessary;
( 20 ) The SFV measurement systems must have a sensitivity appropriate for the expected sound levels from pile driving received at the nominal ranges throughout the installation of the pile. The frequency range of SFV measurement systems must cover the range of at least 20 hertz (Hz) to 20 kilohertz (kHz). The SFV measurement systems must be designed to have omnidirectional sensitivity so that the broadband received level of all pile driving exceeds the system noise floor by at least 10-dB. The dynamic range of the SFV measurement system must be sufficient such that at each location, and the signals avoid poor signal-to-noise ratios for low amplitude signals and avoid clipping, nonlinearity, and saturation for high amplitude signals;
( 21 ) All hydrophones used in SFV measurements systems are required to have undergone a full system, traceable laboratory calibration conforming to International Electrotechnical Commission (IEC) 60565, or an equivalent standard procedure, from a factory or accredited source to ensure the hydrophone receives accurate sound levels, at a date not to exceed 2 years before deployment. Additional *in situ* calibration checks using a pistonphone are required to be performed before and after each hydrophone deployment. If the measurement system employs filters via hardware or software (*e.g.,* high-pass, low-pass, *etc.*), which is not already accounted for by the calibration, the filter performance (*i.e.,* the filter's frequency response) must be known, reported, and the data corrected before analysis;
( 22 ) Sunrise Wind must be prepared with additional equipment (*e.g.,* hydrophones, recording devices, hydrophone calibrators, cables, batteries), which exceeds the amount of equipment necessary to perform the measurements, such that technical issues can be mitigated before measurement;
( 23 ) If any of the SFV measurements from any pile indicate that the distance to any isopleth of concern is greater than those modeled assuming 10-dB attenuation before the next pile is installed Sunrise Wind must implement the following measures as applicable: identify and propose for review and concurrence: additional, modified, and/or alternative noise attenuation measures or operational changes that present a reasonable likelihood of reducing sound levels to the modeled distances; provide a written explanation to NMFS Office of Protected Resources supporting that determination and requesting concurrence to proceed; and, following NMFS Office of Protected Resources's concurrence, deploy those additional measures on any subsequent piles that are installed (*e.g.,* if threshold distances are exceeded on pile 1 then additional measures must be deployed before installing pile 2);
( 24 ) If acoustic measurements indicate that ranges to isopleths corresponding to the Level A harassment and Level B harassment thresholds are less than the ranges predicted by modeling (assuming 10-dB attenuation), Sunrise Wind may request to NMFS Office of Protected Resources a modification of the mitigation zones for non-North Atlantic right whale species;
( 25 ) Sunrise Wind must conduct SFV measurements upon commencement of turbine operations to estimate turbine operational source levels and transmission loss rates, in accordance with a NMFS-approved Foundation Installation Pile Driving SFV Plan;
( 26 ) Sunrise Wind must submit a SFV Plan to NMFS Office of Protected Resources for review and approval at least 180 days prior to planned start of foundation installation activities and abide by the Plan if approved. At minimum, the SFV Plan must describe how Sunrise Wind would ensure that the first three monopile foundation installation sites selected for SFV measurements are representative of the rest of the monopile installation sites such that future pile installation events are anticipated to produce similar sound levels to those piles measured. In the case that these sites/scenarios are not determined to be representative of all other pile installation sites, Sunrise Wind must include information in the SFV Plan on how additional sites/scenarios would be selected for SFV measurements. This SFV Plan must also include methodology for collecting, analyzing, and preparing SFV measurement data for submission to NMFS Office of Protected Resources and describe how the effectiveness of the sound attenuation methodology would be evaluated based on the results. Pile driving may not occur until NMFS approves the SFV Plan for this activity; and
( 27 ) If a subsequent monopile installation location is selected that was not represented by previous three locations (*i.e.,* substrate composition, water depth), complete SFV must be conducted.
( d ) *Cable landfall construction.* Sunrise Wind must comply with the following measures during cable landfall construction activities: ( 1 ) Sunrise Wind must conduct vibratory pile driving and pneumatic hammering during daylight hours only;
( 2 ) Sunrise Wind must have a minimum of two PSOs on active duty 30 minutes before, during, and 30 minutes after any installation and removal of the temporary sheet piles, casing pipes and goal posts. These PSOs must always be located at the best vantage point(s) on the vibratory pile driving, pneumatic hammering, or secondary platform in the immediate vicinity of the vibratory pile driving or pneumatic hammering platform in order to ensure that appropriate visual coverage is available for the entire visual clearance zone and as much of the Level B harassment zone, as possible;
( 3 ) Sunrise Wind must establish clearance and shutdown zones. If a marine mammal(s) is observed entering or is observed within the clearance zones, before vibratory pile driving or pneumatic hammering has begun, the activity must not commence until the animal(s) has exited the zone at its own volition or a specific amount of time has elapsed since the last sighting. The specific time periods are 30 minutes for all baleen whale species and sperm whales, and 15 minutes for all other species;
( 4 ) If a marine mammal is observed entering or within the respective shutdown zone after pile driving has begun, the PSO must call for a shutdown of pile driving and Sunrise Wind must stop pile driving immediately, unless shutdown is not practicable due to imminent risk of injury or loss of life to an individual or risk of damage to a vessel that creates risk of injury or loss of life for individuals, or the lead engineer determines there is risk of pile refusal or pile instability. If pile driving is not shut down due to one of these situations, Sunrise Wind must reduce hammer energy to the lowest level practicable;
( 5 ) Pile driving must not restart until either the marine mammal(s) has voluntarily left and have been visually confirmed beyond the clearance zone, or, when specific time periods have elapsed with no further sightings or acoustic detections have occurred. The specific time periods are 30 minutes for all baleen whale species and sperm whales, and 15 minutes for all other species; and
( 6 ) Sunrise Wind must employ a soft-start for all impact pile driving of goal posts. Soft start requires contractors to provide an initial set of three strikes at reduced energy, followed by a 30-second waiting period, then two subsequent reduced-energy strike sets.
( e ) *UXO/MEC detonation.* Sunrise wind must comply with the measures related to UXO/MEC detonation in paragraphs (e)(1) through (12) of this section: ( 1 ) Sunrise Wind may only detonate a maximum of three UXO/MECs, of varying sizes;
( 2 ) Sunrise Wind must not detonate UXOs/MECs from December 1 through April 30, annually;
( 3 ) Sunrise Wind must only detonate UXO/MECs during daylight hours (1 hour after civil sunrise through 1.5 hours prior to civil sunset);
( 4 ) Upon encountering a UXO/MEC of concern, Sunrise Wind may only resort to high-order removal (*i.e.,* detonation) if all other means of removal are impracticable;
( 5 ) Sunrise Wind must utilize a dual noise abatement system (*e.g.,* double bubble curtain) around all UXO/MEC detonations and operate that system in a manner that achieves the maximum noise attenuation levels practicable. If a double bubble curtain is used, it must be placed at a distance such that the nozzle hose remains undamaged;
( 6 ) A pressure transducer must be used to monitor pressure levels during all UXO/MEC detonations;
( 7 ) Sunrise Wind must use at least 3 visual PSOs on each PSO platform and one PAM operator to monitor for marine mammals in the clearance zones prior to detonation. If the clearance zone is larger than 2 km (based on charge weight), Sunrise Wind must deploy a secondary PSO vessel. If the clearance is larger than 5 km (based on charge weight), an aerial platform must be used unless Sunrise Wind determines an aerial platform is not practical and, in such case, an additional vessel must be used;
( 8 ) Sunrise Wind must establish and implement clearance zones for UXO/MEC detonation using both visual and acoustic monitoring. Clearance zones must be fully visible for at least 60 minutes and all marine mammal(s) must be confirmed to be outside of the clearance zone for at least 30 minutes prior to detonation. PAM must also be conducted for at least 60 minutes prior to detonation and the zone must be acoustically cleared during this time;
( 9 ) If a marine mammal is observed entering or within the clearance zone prior to denotation, the activity must be delayed. Detonation may only commence if all marine mammals have been confirmed to have voluntarily left the clearance zones and been visually confirmed to be beyond the clearance zone, or when 60 minutes have elapsed without any redetections for whales (including the North Atlantic right whale) or 15 minutes have elapsed without any redetections of delphinids, harbor porpoises, or seals;
( 10 ) During each UXO/MEC detonation, Sunrise Wind must conduct SFV, in accordance with a NMFS-approved UXO/MEC SFV Plan, at a minimum of three locations, with two water depths at each location, from each detonation in a direction toward deeper water to empirically determine source levels (peak and cumulative sound exposure level), the ranges to the isopleths corresponding to the Level A harassment and Level B harassment thresholds, and estimated transmission loss coefficient(s);
( 11 ) If SFV measurements on any of the detonations indicate that the ranges to Level A harassment and Level B harassment thresholds are larger than those modeled, assuming 10-dB attenuation, Sunrise Wind must modify the clearance zones, with approval from NMFS, and apply additional noise attenuation measures (*e.g.,* improve efficiency of bubble curtain(s)) before the next detonation event of similar size; and
( 12 ) Sunrise Wind must prepare and submit a UXO/MEC Marine Mammal Monitoring Plan to NMFS for review and approval at least 180 days before the start of any UXO/MEC detonations. The plan must include final project design and all information related to visual and PAM PSO monitoring protocols for UXO/MEC detonations.
( f ) *HRG surveys.* The following requirements apply to HRG surveys operating sub-bottom profilers (SBPs) (*i.e.,* boomers, sparkers, and Compressed High Intensity Radiated Pulse (CHIRPS)) (hereinafter referred to as “acoustic sources”): ( 1 ) Sunrise Wind must abide by the relevant Project Design Criteria (PDCs 4, 5, and 7) of the programmatic consultation completed by NMFS' Greater Atlantic Regional Fisheries Office on June 29, 2021 (revised September 2021), pursuant to section 7 of the Endangered Species Act (ESA) or otherwise updated. To the extent that any relevant Best Management Practices (BMPs) described in these PDCs are more stringent than the requirements herein, those BMPs supersede these requirements;
( 2 ) Acoustic sources must be deactivated when not acquiring data or preparing to acquire data except as necessary for testing. Acoustic sources must be used at the lowest practicable source level to meet the survey objective;
( 3 ) Sunrise Wind must use at least one PSO during daylight operations and two PSOs during nighttime operations, per vessel;
( 4 ) PSOs must begin visually monitoring 30 minutes prior to the initiation of the specified acoustic source (including ramp-up, if applicable), through 30 minutes after the use of the specified acoustic source has ceased;
( 5 ) Prior to starting the survey and after receiving confirmation from the PSOs that the clearance zone is clear of any marine mammals, Sunrise Wind is required to ramp-up acoustic sources to half power for 5 minutes prior to commencing full power, unless the equipment operates on a binary on/off switch (in which case ramp-up is not required). Any ramp-up of acoustic sources may only commence when visual clearance zones are fully visible (*e.g.,* not obscured by darkness, rain, fog, *etc.*) and clear of marine mammals, as determined by the Lead PSO, for at least 30 minutes immediately prior to the initiation of survey activities using a specified acoustic source. Ramp-ups must be scheduled so as to minimize the time spent with the source activated;
( 6 ) Prior to a ramp-up procedure starting, the acoustic source operator must notify the Lead PSO of the planned start of ramp-up. The notification time must not be less than 60 minutes prior to the planned ramp-up or activation in order to allow the PSO(s) time to monitor the clearance zone(s) for 30 minutes prior to the initiation of ramp-up or activation (pre-start clearance). During this 30-minute pre-start clearance period, the entire applicable clearance zones must be visible;
( 7 ) A PSO conducting pre-start clearance observations must be notified again immediately prior to reinitiating ramp-up procedures and the operator must receive confirmation from the PSO to proceed;
( 8 ) If a marine mammal is observed within a clearance zone during the 30 minute clearance period, ramp-up or acoustic surveys may not begin until the animal(s) has been observed voluntarily exiting its respective clearance zone or until a specific time period has elapsed with no further sighting. The specific time periods are 30 minutes for all baleen whale species and sperm whales, and 15 minutes for all other species;
( 9 ) In any case when the clearance process has begun in conditions with good visibility, including via the use of night vision/reduced visibility condition equipment (infrared (IR)/thermal camera), and the Lead PSO has determined that the clearance zones are clear of marine mammals, survey operations may commence (*i.e.,* no delay is required) despite periods of inclement weather and/or loss of daylight. Ramp-up may occur at times of poor visibility, including nighttime, if appropriate visual monitoring has occurred with no detections of marine mammals in the 30 minutes prior to beginning ramp-up;
( 10 ) Once the survey has commenced, Sunrise Wind must shut down acoustic sources if a marine mammal enters a respective shutdown zone. In cases when the shutdown zones become obscured for brief periods (less than 30 minutes) due to inclement weather, survey operations would be allowed to continue (*i.e.,* no shutdown is required) so long as no marine mammals have been detected. The shutdown requirement does not apply to small delphinids of the following genera: *Delphinus, Stenella, Lagenorhynchus,* and *Tursiops.* If there is uncertainty regarding the identification of a marine mammal species (*i.e.,* whether the observed marine mammal belongs to one of the delphinid genera for which shutdown is waived), the PSOs must use their best professional judgment in making the decision to call for a shutdown. Shutdown is required if a delphinid that belongs to a genus other than those specified in this paragraph of this section is detected in the shutdown zone. If there is uncertainty regarding the identification of a marine mammal species (*e.g.,* whether the observed marine mammal belongs to one of the delphinid genera for which shutdown is waived), the PSOs must use their best professional judgment in making the decision to call for a shutdown;
( 11 ) If an acoustic source has been shut down due to the presence of a marine mammal, the use of an acoustic source may not commence or resume until the animal(s) has been confirmed to have left the Level B harassment zone or until a full 30 minutes for all baleen whale species and sperm whales, and 15 minutes for all other species have elapsed with no further sighting. If an acoustic source is shut down for reasons other than mitigation (*e.g.,* mechanical difficulty) for less than 30 minutes, it may be activated again without ramp-up only if PSOs have maintained constant observation and no additional detections of any marine mammal occurred within the respective shutdown zones. If an acoustic source is shut down for a period longer than 30 minutes, then all clearance and ramp-up procedures must be initiated;
( 12 ) If multiple HRG vessels are operating concurrently, any observations of marine mammals must be communicated to PSOs on all nearby survey vessels; and
( 13 ) Should an autonomous survey vehicle (ASV) be used during HRG surveys, the ASV must remain with 800 m (2,635 ft) of the primary vessel while conducting survey operations; two PSOs must be stationed on the mother vessel at the best vantage points to monitor the clearance and shutdown zones around the ASV; at least one PSO must monitor the output of a thermal high-definition camera installed on the mother vessel to monitor the field-of-view around the ASV using a hand-held tablet, and during periods of reduced visibility (*e.g.,* darkness, rain, or fog), PSOs must use night-vision goggles with thermal clip-ons and a hand-held spotlight to monitor the clearance and shutdown zones around the ASV.
( g ) *Fisheries monitoring surveys.* The requirements in paragraphs (g)(1) through (12) of this section apply to fishery monitoring surveys: ( 1 ) Marine mammal monitoring must be conducted by the captain and/or a member of the scientific crew before (within 1 nautical mile (nmi) (1.85 km) and 15 minutes prior to deploying gear), during, and after haul back;
( 2 ) Survey gear must be deployed as soon as possible once the vessel arrives on station. Gear must not be deployed if there is a risk of interaction with marine mammals. Gear may be deployed after 15 minutes of no marine mammal sightings within 1 nautical mile (nmi; 1,852 m) of the sampling station;
( 3 ) Sunrise Wind must implement the following “move-on” rule. If marine mammals are sighted within 1 nm (nmi (1.2 mi)) of the planned location in the 15 minutes before gear deployment, then Sunrise Wind must move the vessel away from the marine mammal to a different section of the sampling area. If, after moving on, marine mammals are still visible from the vessel, Sunrise Wind and its cooperating institutions, contracted vessels, or commercially hired captains must move again or to skip the station;
( 4 ) All captains and crew conducting fishery surveys will be trained in marine mammal detection and identification;
( 5 ) If a marine mammal is at risk of interacting with deployed gear, all gear must be immediately removed from the water. If marine mammals are sighted before the gear is fully removed from the water, the vessel must slow its speed and maneuver the vessel away from the animals to minimize potential interactions with the observed animal;
( 6 ) Sunrise Wind must maintain visual marine mammal monitoring effort during the entire period of time that gear is in the water (*i.e.,* throughout gear deployment, fishing, and retrieval);
( 7 ) Trawl tows must be limited to a maximum of 20 minute trawl-time;
( 8 ) All gear must be emptied as close to the deck/sorting area and as quickly as possible after retrieval in order to avoid injury to animals that may be caught in the gear;
( 9 ) All fisheries monitoring gear must be fully cleaned and repaired (if damaged) before each use/deployment;
( 10 ) All in-water survey gear, including buoys, must be properly labeled with the scientific permit number or identification as Sunrise Wind's research gear. All labels and markings on the gear, buoys, and buoy lines must also be compliant with the applicable regulations, and all buoy markings must comply with instructions received by the NOAA Greater Atlantic Regional Fisheries Office Protected Resources Division. Any lost gear associated with the fishery surveys must be reported to the NOAA Greater Atlantic Regional Fisheries Office Protected Resources Division within 24 hours;
( 11 ) All survey gear must be removed from the water whenever not in active survey use (*i.e.,* no wet storage); and
( 12 ) All reasonable efforts, that do not compromise human safety, must be undertaken to recover gear.
( h ) *Temporary pier construction.* The following requirements apply to impact and vibratory pile driving during temporary pier construction at Smith Point County Park: ( 1 ) Sunrise Wind must delay or shutdown pile driving if a marine mammal is observed entering or within the Level B harassment zones; and
( 2 ) At least one PSO must be on duty monitoring for marine mammals 30 minutes prior to, during and 30 minutes after pile driving.